EP 3222527 B1 20231129 - OPTICALLY DETECTING CLOUD METRICS USING SAMPLED ANALOG MEASUREMENTS OF LIGHT REFLECTION
Title (en)
OPTICALLY DETECTING CLOUD METRICS USING SAMPLED ANALOG MEASUREMENTS OF LIGHT REFLECTION
Title (de)
OPTISCHE DETEKTION VON WOLKENMETRIKEN UNTER VERWENDUNG VON ANALOGEN MESSUNGEN DER LICHTREFLEXION
Title (fr)
DÉTECTION OPTIQUE DE MESURES DE NUAGES À L'AIDE DE MESURES ANALOGIQUES ÉCHANTILLONNÉES DE RÉFLEXION DE LUMIÈRE
Publication
Application
Priority
US 201615075735 A 20160321
Abstract (en)
[origin: EP3222527A1] Apparatus and associated methods relate to determining metrics of water particles in clouds by directing light pulses at a cloud and measuring a peak, a post-peak value and a high-frequency fluctuation of light signals reflected from the cloud. The light pulses include: a first pulse having circularly polarized light of a first wavelength; and a second pulse of a second wavelength. The reflected light signals include: a first reflected light signal having left-hand circular polarization of the first wavelength; a second reflected light signal having right-hand circular polarization of the first wavelength; and a third reflected light signal of the second wavelength. An extinction coefficient and a backscatter coefficient are determined based on the measured peak and post-peak slopes of the first and second reflected light signals. The measured high-frequency fluctuations of the three reflected light signals can be used to calculate cloud particle sizes.
IPC 8 full level
G01S 7/4865 (2020.01); B64D 15/20 (2006.01); B64D 15/22 (2006.01); B64D 47/04 (2006.01); G01N 21/17 (2006.01); G01N 21/21 (2006.01); G01N 21/39 (2006.01); G01N 21/47 (2006.01); G01N 21/53 (2006.01); G01S 7/48 (2006.01); G01S 7/481 (2006.01); G01S 7/486 (2020.01); G01S 7/499 (2006.01); G01S 17/95 (2006.01)
CPC (source: EP US)
B64D 15/20 (2013.01 - EP US); G01N 15/0205 (2013.01 - US); G01N 15/1434 (2013.01 - US); G01N 21/21 (2013.01 - EP US); G01N 21/538 (2013.01 - EP US); G01S 7/4802 (2013.01 - EP US); G01S 7/4815 (2013.01 - EP US); G01S 7/4865 (2013.01 - EP US); G01S 7/499 (2013.01 - EP US); G01S 17/95 (2013.01 - EP US); G01W 1/00 (2013.01 - US); B64D 47/04 (2013.01 - EP US); G01N 2021/1795 (2013.01 - EP US); G01N 2021/216 (2013.01 - EP US); G01N 2021/4709 (2013.01 - EP US); G01N 2021/4792 (2013.01 - EP US); G01N 2201/0697 (2013.01 - EP US); Y02A 90/10 (2018.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3222527 A1 20170927; EP 3222527 B1 20231129; BR 102017003154 A2 20170926; BR 102017003154 B1 20221129; CA 2953696 A1 20170921; US 10207810 B2 20190219; US 2017268993 A1 20170921
DOCDB simple family (application)
EP 17158328 A 20170228; BR 102017003154 A 20170216; CA 2953696 A 20170104; US 201615075735 A 20160321